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  <pre class="prettyprint lang-js"><span id='Date'>/**
</span> * @class Date
 *
 * The date parsing and formatting syntax contains a subset of
 * &lt;a href=&quot;http://www.php.net/date&quot;&gt;PHP's date() function&lt;/a&gt;, and the formats that are
 * supported will provide results equivalent to their PHP versions.
 *
 * The following is a list of all currently supported formats:
 * &lt;pre&gt;
Format  Description                                                               Example returned values
------  -----------------------------------------------------------------------   -----------------------
  d     Day of the month, 2 digits with leading zeros                             01 to 31
  D     A short textual representation of the day of the week                     Mon to Sun
  j     Day of the month without leading zeros                                    1 to 31
  l     A full textual representation of the day of the week                      Sunday to Saturday
  N     ISO-8601 numeric representation of the day of the week                    1 (for Monday) through 7 (for Sunday)
  S     English ordinal suffix for the day of the month, 2 characters             st, nd, rd or th. Works well with j
  w     Numeric representation of the day of the week                             0 (for Sunday) to 6 (for Saturday)
  z     The day of the year (starting from 0)                                     0 to 364 (365 in leap years)
  W     ISO-8601 week number of year, weeks starting on Monday                    01 to 53
  F     A full textual representation of a month, such as January or March        January to December
  m     Numeric representation of a month, with leading zeros                     01 to 12
  M     A short textual representation of a month                                 Jan to Dec
  n     Numeric representation of a month, without leading zeros                  1 to 12
  t     Number of days in the given month                                         28 to 31
  L     Whether it's a leap year                                                  1 if it is a leap year, 0 otherwise.
  o     ISO-8601 year number (identical to (Y), but if the ISO week number (W)    Examples: 1998 or 2004
        belongs to the previous or next year, that year is used instead)
  Y     A full numeric representation of a year, 4 digits                         Examples: 1999 or 2003
  y     A two digit representation of a year                                      Examples: 99 or 03
  a     Lowercase Ante meridiem and Post meridiem                                 am or pm
  A     Uppercase Ante meridiem and Post meridiem                                 AM or PM
  g     12-hour format of an hour without leading zeros                           1 to 12
  G     24-hour format of an hour without leading zeros                           0 to 23
  h     12-hour format of an hour with leading zeros                              01 to 12
  H     24-hour format of an hour with leading zeros                              00 to 23
  i     Minutes, with leading zeros                                               00 to 59
  s     Seconds, with leading zeros                                               00 to 59
  u     Decimal fraction of a second                                              Examples:
        (minimum 1 digit, arbitrary number of digits allowed)                     001 (i.e. 0.001s) or
                                                                                  100 (i.e. 0.100s) or
                                                                                  999 (i.e. 0.999s) or
                                                                                  999876543210 (i.e. 0.999876543210s)
  O     Difference to Greenwich time (GMT) in hours and minutes                   Example: +1030
  P     Difference to Greenwich time (GMT) with colon between hours and minutes   Example: -08:00
  T     Timezone abbreviation of the machine running the code                     Examples: EST, MDT, PDT ...
  Z     Timezone offset in seconds (negative if west of UTC, positive if east)    -43200 to 50400
  c     ISO 8601 date
        Notes:                                                                    Examples:
        1) If unspecified, the month / day defaults to the current month / day,   1991 or
           the time defaults to midnight, while the timezone defaults to the      1992-10 or
           browser's timezone. If a time is specified, it must include both hours 1993-09-20 or
           and minutes. The &quot;T&quot; delimiter, seconds, milliseconds and timezone     1994-08-19T16:20+01:00 or
           are optional.                                                          1995-07-18T17:21:28-02:00 or
        2) The decimal fraction of a second, if specified, must contain at        1996-06-17T18:22:29.98765+03:00 or
           least 1 digit (there is no limit to the maximum number                 1997-05-16T19:23:30,12345-0400 or
           of digits allowed), and may be delimited by either a '.' or a ','      1998-04-15T20:24:31.2468Z or
        Refer to the examples on the right for the various levels of              1999-03-14T20:24:32Z or
        date-time granularity which are supported, or see                         2000-02-13T21:25:33
        http://www.w3.org/TR/NOTE-datetime for more info.                         2001-01-12 22:26:34
  U     Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)                1193432466 or -2138434463
  M$    Microsoft AJAX serialized dates                                           \/Date(1238606590509)\/ (i.e. UTC milliseconds since epoch) or
                                                                                  \/Date(1238606590509+0800)\/
&lt;/pre&gt;
 *
 * Example usage (note that you must escape format specifiers with '\\' to render them as character literals):
 * &lt;pre&gt;&lt;code&gt;
// Sample date:
// 'Wed Jan 10 2007 15:05:01 GMT-0600 (Central Standard Time)'

var dt = new Date('1/10/2007 03:05:01 PM GMT-0600');
document.write(dt.format('Y-m-d'));                           // 2007-01-10
document.write(dt.format('F j, Y, g:i a'));                   // January 10, 2007, 3:05 pm
document.write(dt.format('l, \\t\\he jS \\of F Y h:i:s A'));  // Wednesday, the 10th of January 2007 03:05:01 PM
&lt;/code&gt;&lt;/pre&gt;
 *
 * Here are some standard date/time patterns that you might find helpful.  They
 * are not part of the source of Date.js, but to use them you can simply copy this
 * block of code into any script that is included after Date.js and they will also become
 * globally available on the Date object.  Feel free to add or remove patterns as needed in your code.
 * &lt;pre&gt;&lt;code&gt;
Date.patterns = {
    ISO8601Long:&quot;Y-m-d H:i:s&quot;,
    ISO8601Short:&quot;Y-m-d&quot;,
    ShortDate: &quot;n/j/Y&quot;,
    LongDate: &quot;l, F d, Y&quot;,
    FullDateTime: &quot;l, F d, Y g:i:s A&quot;,
    MonthDay: &quot;F d&quot;,
    ShortTime: &quot;g:i A&quot;,
    LongTime: &quot;g:i:s A&quot;,
    SortableDateTime: &quot;Y-m-d\\TH:i:s&quot;,
    UniversalSortableDateTime: &quot;Y-m-d H:i:sO&quot;,
    YearMonth: &quot;F, Y&quot;
};
&lt;/code&gt;&lt;/pre&gt;
 *
 * Example usage:
 * &lt;pre&gt;&lt;code&gt;
var dt = new Date();
document.write(dt.format(Date.patterns.ShortDate));
&lt;/code&gt;&lt;/pre&gt;
 * &lt;p&gt;Developer-written, custom formats may be used by supplying both a formatting and a parsing function
 * which perform to specialized requirements. The functions are stored in {@link #parseFunctions} and {@link #formatFunctions}.&lt;/p&gt;
 */

/*
 * Most of the date-formatting functions below are the excellent work of Baron Schwartz.
 * (see http://www.xaprb.com/blog/2005/12/12/javascript-closures-for-runtime-efficiency/)
 * They generate precompiled functions from format patterns instead of parsing and
 * processing each pattern every time a date is formatted. These functions are available
 * on every Date object.
 */

(function() {

<span id='Date-static-property-useStrict'>/**
</span> * Global flag which determines if strict date parsing should be used.
 * Strict date parsing will not roll-over invalid dates, which is the
 * default behaviour of javascript Date objects.
 * (see {@link #parseDate} for more information)
 * Defaults to &lt;tt&gt;false&lt;/tt&gt;.
 * @static
 * @type Boolean
*/
Date.useStrict = false;


// create private copy of Ext's String.format() method
// - to remove unnecessary dependency
// - to resolve namespace conflict with M$-Ajax's implementation
function xf(format) {
    var args = Array.prototype.slice.call(arguments, 1);
    return format.replace(/\{(\d+)\}/g, function(m, i) {
        return args[i];
    });
}


// private
Date.formatCodeToRegex = function(character, currentGroup) {
    // Note: currentGroup - position in regex result array (see notes for Date.parseCodes below)
    var p = Date.parseCodes[character];

    if (p) {
      p = typeof p == 'function'? p() : p;
      Date.parseCodes[character] = p; // reassign function result to prevent repeated execution
    }

    return p ? Ext.applyIf({
      c: p.c ? xf(p.c, currentGroup || &quot;{0}&quot;) : p.c
    }, p) : {
        g:0,
        c:null,
        s:Ext.escapeRe(character) // treat unrecognised characters as literals
    };
};

// private shorthand for Date.formatCodeToRegex since we'll be using it fairly often
var $f = Date.formatCodeToRegex;

Ext.apply(Date, {
<span id='Date-static-property-parseFunctions'>    /**
</span>     * &lt;p&gt;An object hash in which each property is a date parsing function. The property name is the
     * format string which that function parses.&lt;/p&gt;
     * &lt;p&gt;This object is automatically populated with date parsing functions as
     * date formats are requested for Ext standard formatting strings.&lt;/p&gt;
     * &lt;p&gt;Custom parsing functions may be inserted into this object, keyed by a name which from then on
     * may be used as a format string to {@link #parseDate}.&lt;p&gt;
     * &lt;p&gt;Example:&lt;/p&gt;&lt;pre&gt;&lt;code&gt;
Date.parseFunctions['x-date-format'] = myDateParser;
&lt;/code&gt;&lt;/pre&gt;
     * &lt;p&gt;A parsing function should return a Date object, and is passed the following parameters:&lt;div class=&quot;mdetail-params&quot;&gt;&lt;ul&gt;
     * &lt;li&gt;&lt;code&gt;date&lt;/code&gt; : String&lt;div class=&quot;sub-desc&quot;&gt;The date string to parse.&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;strict&lt;/code&gt; : Boolean&lt;div class=&quot;sub-desc&quot;&gt;True to validate date strings while parsing
     * (i.e. prevent javascript Date &quot;rollover&quot;) (The default must be false).
     * Invalid date strings should return null when parsed.&lt;/div&gt;&lt;/li&gt;
     * &lt;/ul&gt;&lt;/div&gt;&lt;/p&gt;
     * &lt;p&gt;To enable Dates to also be &lt;i&gt;formatted&lt;/i&gt; according to that format, a corresponding
     * formatting function must be placed into the {@link #formatFunctions} property.
     * @property parseFunctions
     * @static
     * @type Object
     */
    parseFunctions: {
        &quot;M$&quot;: function(input, strict) {
            // note: the timezone offset is ignored since the M$ Ajax server sends
            // a UTC milliseconds-since-Unix-epoch value (negative values are allowed)
            var re = new RegExp('\\/Date\\(([-+])?(\\d+)(?:[+-]\\d{4})?\\)\\/');
            var r = (input || '').match(re);
            return r? new Date(((r[1] || '') + r[2]) * 1) : null;
        }
    },
    parseRegexes: [],

<span id='Date-static-property-formatFunctions'>    /**
</span>     * &lt;p&gt;An object hash in which each property is a date formatting function. The property name is the
     * format string which corresponds to the produced formatted date string.&lt;/p&gt;
     * &lt;p&gt;This object is automatically populated with date formatting functions as
     * date formats are requested for Ext standard formatting strings.&lt;/p&gt;
     * &lt;p&gt;Custom formatting functions may be inserted into this object, keyed by a name which from then on
     * may be used as a format string to {@link #format}. Example:&lt;/p&gt;&lt;pre&gt;&lt;code&gt;
Date.formatFunctions['x-date-format'] = myDateFormatter;
&lt;/code&gt;&lt;/pre&gt;
     * &lt;p&gt;A formatting function should return a string representation of the passed Date object, and is passed the following parameters:&lt;div class=&quot;mdetail-params&quot;&gt;&lt;ul&gt;
     * &lt;li&gt;&lt;code&gt;date&lt;/code&gt; : Date&lt;div class=&quot;sub-desc&quot;&gt;The Date to format.&lt;/div&gt;&lt;/li&gt;
     * &lt;/ul&gt;&lt;/div&gt;&lt;/p&gt;
     * &lt;p&gt;To enable date strings to also be &lt;i&gt;parsed&lt;/i&gt; according to that format, a corresponding
     * parsing function must be placed into the {@link #parseFunctions} property.
     * @property formatFunctions
     * @static
     * @type Object
     */
    formatFunctions: {
        &quot;M$&quot;: function() {
            // UTC milliseconds since Unix epoch (M$-AJAX serialized date format (MRSF))
            return '\\/Date(' + this.getTime() + ')\\/';
        }
    },

    y2kYear : 50,

<span id='Date-static-property-MILLI'>    /**
</span>     * Date interval constant
     * @static
     * @type String
     */
    MILLI : &quot;ms&quot;,

<span id='Date-static-property-SECOND'>    /**
</span>     * Date interval constant
     * @static
     * @type String
     */
    SECOND : &quot;s&quot;,

<span id='Date-static-property-MINUTE'>    /**
</span>     * Date interval constant
     * @static
     * @type String
     */
    MINUTE : &quot;mi&quot;,

<span id='Date-static-property-HOUR'>    /** Date interval constant
</span>     * @static
     * @type String
     */
    HOUR : &quot;h&quot;,

<span id='Date-static-property-DAY'>    /**
</span>     * Date interval constant
     * @static
     * @type String
     */
    DAY : &quot;d&quot;,

<span id='Date-static-property-MONTH'>    /**
</span>     * Date interval constant
     * @static
     * @type String
     */
    MONTH : &quot;mo&quot;,

<span id='Date-static-property-YEAR'>    /**
</span>     * Date interval constant
     * @static
     * @type String
     */
    YEAR : &quot;y&quot;,

<span id='Date-static-property-defaults'>    /**
</span>     * &lt;p&gt;An object hash containing default date values used during date parsing.&lt;/p&gt;
     * &lt;p&gt;The following properties are available:&lt;div class=&quot;mdetail-params&quot;&gt;&lt;ul&gt;
     * &lt;li&gt;&lt;code&gt;y&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default year value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;m&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default 1-based month value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;d&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default day value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;h&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default hour value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;i&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default minute value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;s&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default second value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;li&gt;&lt;code&gt;ms&lt;/code&gt; : Number&lt;div class=&quot;sub-desc&quot;&gt;The default millisecond value. (defaults to undefined)&lt;/div&gt;&lt;/li&gt;
     * &lt;/ul&gt;&lt;/div&gt;&lt;/p&gt;
     * &lt;p&gt;Override these properties to customize the default date values used by the {@link #parseDate} method.&lt;/p&gt;
     * &lt;p&gt;&lt;b&gt;Note: In countries which experience Daylight Saving Time (i.e. DST), the &lt;tt&gt;h&lt;/tt&gt;, &lt;tt&gt;i&lt;/tt&gt;, &lt;tt&gt;s&lt;/tt&gt;
     * and &lt;tt&gt;ms&lt;/tt&gt; properties may coincide with the exact time in which DST takes effect.
     * It is the responsiblity of the developer to account for this.&lt;/b&gt;&lt;/p&gt;
     * Example Usage:
     * &lt;pre&gt;&lt;code&gt;
// set default day value to the first day of the month
Date.defaults.d = 1;

// parse a February date string containing only year and month values.
// setting the default day value to 1 prevents weird date rollover issues
// when attempting to parse the following date string on, for example, March 31st 2009.
Date.parseDate('2009-02', 'Y-m'); // returns a Date object representing February 1st 2009
&lt;/code&gt;&lt;/pre&gt;
     * @property defaults
     * @static
     * @type Object
     */
    defaults: {},

<span id='Date-static-property-dayNames'>    /**
</span>     * An array of textual day names.
     * Override these values for international dates.
     * Example:
     * &lt;pre&gt;&lt;code&gt;
Date.dayNames = [
    'SundayInYourLang',
    'MondayInYourLang',
    ...
];
&lt;/code&gt;&lt;/pre&gt;
     * @type Array
     * @static
     */
    dayNames : [
        &quot;Sunday&quot;,
        &quot;Monday&quot;,
        &quot;Tuesday&quot;,
        &quot;Wednesday&quot;,
        &quot;Thursday&quot;,
        &quot;Friday&quot;,
        &quot;Saturday&quot;
    ],

<span id='Date-static-property-monthNames'>    /**
</span>     * An array of textual month names.
     * Override these values for international dates.
     * Example:
     * &lt;pre&gt;&lt;code&gt;
Date.monthNames = [
    'JanInYourLang',
    'FebInYourLang',
    ...
];
&lt;/code&gt;&lt;/pre&gt;
     * @type Array
     * @static
     */
    monthNames : [
        &quot;January&quot;,
        &quot;February&quot;,
        &quot;March&quot;,
        &quot;April&quot;,
        &quot;May&quot;,
        &quot;June&quot;,
        &quot;July&quot;,
        &quot;August&quot;,
        &quot;September&quot;,
        &quot;October&quot;,
        &quot;November&quot;,
        &quot;December&quot;
    ],

<span id='Date-static-property-monthNumbers'>    /**
</span>     * An object hash of zero-based javascript month numbers (with short month names as keys. note: keys are case-sensitive).
     * Override these values for international dates.
     * Example:
     * &lt;pre&gt;&lt;code&gt;
Date.monthNumbers = {
    'ShortJanNameInYourLang':0,
    'ShortFebNameInYourLang':1,
    ...
};
&lt;/code&gt;&lt;/pre&gt;
     * @type Object
     * @static
     */
    monthNumbers : {
        Jan:0,
        Feb:1,
        Mar:2,
        Apr:3,
        May:4,
        Jun:5,
        Jul:6,
        Aug:7,
        Sep:8,
        Oct:9,
        Nov:10,
        Dec:11
    },

<span id='Date-static-method-getShortMonthName'>    /**
</span>     * Get the short month name for the given month number.
     * Override this function for international dates.
     * @param {Number} month A zero-based javascript month number.
     * @return {String} The short month name.
     * @static
     */
    getShortMonthName : function(month) {
        return Date.monthNames[month].substring(0, 3);
    },

<span id='Date-static-method-getShortDayName'>    /**
</span>     * Get the short day name for the given day number.
     * Override this function for international dates.
     * @param {Number} day A zero-based javascript day number.
     * @return {String} The short day name.
     * @static
     */
    getShortDayName : function(day) {
        return Date.dayNames[day].substring(0, 3);
    },

<span id='Date-static-method-getMonthNumber'>    /**
</span>     * Get the zero-based javascript month number for the given short/full month name.
     * Override this function for international dates.
     * @param {String} name The short/full month name.
     * @return {Number} The zero-based javascript month number.
     * @static
     */
    getMonthNumber : function(name) {
        // handle camel casing for english month names (since the keys for the Date.monthNumbers hash are case sensitive)
        return Date.monthNumbers[name.substring(0, 1).toUpperCase() + name.substring(1, 3).toLowerCase()];
    },
    
<span id='Date-static-method-formatContainsHourInfo'>    /**
</span>     * Checks if the specified format contains hour information
     * @param {Object} format The format to check
     * @return {Boolean} True if the format contains hour information
     * @static
     */
    formatContainsHourInfo : (function(){
        var stripEscapeRe = /(\\.)/g,
            hourInfoRe = /([gGhHisucUOPZ]|M\$)/;
        return function(format){
            return hourInfoRe.test(format.replace(stripEscapeRe, ''));
        };
    })(),

<span id='Date-static-property-formatCodes'>    /**
</span>     * The base format-code to formatting-function hashmap used by the {@link #format} method.
     * Formatting functions are strings (or functions which return strings) which
     * will return the appropriate value when evaluated in the context of the Date object
     * from which the {@link #format} method is called.
     * Add to / override these mappings for custom date formatting.
     * Note: Date.format() treats characters as literals if an appropriate mapping cannot be found.
     * Example:
     * &lt;pre&gt;&lt;code&gt;
Date.formatCodes.x = &quot;String.leftPad(this.getDate(), 2, '0')&quot;;
(new Date()).format(&quot;X&quot;); // returns the current day of the month
&lt;/code&gt;&lt;/pre&gt;
     * @type Object
     * @static
     */
    formatCodes : {
        d: &quot;String.leftPad(this.getDate(), 2, '0')&quot;,
        D: &quot;Date.getShortDayName(this.getDay())&quot;, // get localised short day name
        j: &quot;this.getDate()&quot;,
        l: &quot;Date.dayNames[this.getDay()]&quot;,
        N: &quot;(this.getDay() ? this.getDay() : 7)&quot;,
        S: &quot;this.getSuffix()&quot;,
        w: &quot;this.getDay()&quot;,
        z: &quot;this.getDayOfYear()&quot;,
        W: &quot;String.leftPad(this.getWeekOfYear(), 2, '0')&quot;,
        F: &quot;Date.monthNames[this.getMonth()]&quot;,
        m: &quot;String.leftPad(this.getMonth() + 1, 2, '0')&quot;,
        M: &quot;Date.getShortMonthName(this.getMonth())&quot;, // get localised short month name
        n: &quot;(this.getMonth() + 1)&quot;,
        t: &quot;this.getDaysInMonth()&quot;,
        L: &quot;(this.isLeapYear() ? 1 : 0)&quot;,
        o: &quot;(this.getFullYear() + (this.getWeekOfYear() == 1 &amp;&amp; this.getMonth() &gt; 0 ? +1 : (this.getWeekOfYear() &gt;= 52 &amp;&amp; this.getMonth() &lt; 11 ? -1 : 0)))&quot;,
        Y: &quot;String.leftPad(this.getFullYear(), 4, '0')&quot;,
        y: &quot;('' + this.getFullYear()).substring(2, 4)&quot;,
        a: &quot;(this.getHours() &lt; 12 ? 'am' : 'pm')&quot;,
        A: &quot;(this.getHours() &lt; 12 ? 'AM' : 'PM')&quot;,
        g: &quot;((this.getHours() % 12) ? this.getHours() % 12 : 12)&quot;,
        G: &quot;this.getHours()&quot;,
        h: &quot;String.leftPad((this.getHours() % 12) ? this.getHours() % 12 : 12, 2, '0')&quot;,
        H: &quot;String.leftPad(this.getHours(), 2, '0')&quot;,
        i: &quot;String.leftPad(this.getMinutes(), 2, '0')&quot;,
        s: &quot;String.leftPad(this.getSeconds(), 2, '0')&quot;,
        u: &quot;String.leftPad(this.getMilliseconds(), 3, '0')&quot;,
        O: &quot;this.getGMTOffset()&quot;,
        P: &quot;this.getGMTOffset(true)&quot;,
        T: &quot;this.getTimezone()&quot;,
        Z: &quot;(this.getTimezoneOffset() * -60)&quot;,

        c: function() { // ISO-8601 -- GMT format
            for (var c = &quot;Y-m-dTH:i:sP&quot;, code = [], i = 0, l = c.length; i &lt; l; ++i) {
                var e = c.charAt(i);
                code.push(e == &quot;T&quot; ? &quot;'T'&quot; : Date.getFormatCode(e)); // treat T as a character literal
            }
            return code.join(&quot; + &quot;);
        },
        /*
        c: function() { // ISO-8601 -- UTC format
            return [
              &quot;this.getUTCFullYear()&quot;, &quot;'-'&quot;,
              &quot;String.leftPad(this.getUTCMonth() + 1, 2, '0')&quot;, &quot;'-'&quot;,
              &quot;String.leftPad(this.getUTCDate(), 2, '0')&quot;,
              &quot;'T'&quot;,
              &quot;String.leftPad(this.getUTCHours(), 2, '0')&quot;, &quot;':'&quot;,
              &quot;String.leftPad(this.getUTCMinutes(), 2, '0')&quot;, &quot;':'&quot;,
              &quot;String.leftPad(this.getUTCSeconds(), 2, '0')&quot;,
              &quot;'Z'&quot;
            ].join(&quot; + &quot;);
        },
        */

        U: &quot;Math.round(this.getTime() / 1000)&quot;
    },

<span id='Date-static-method-isValid'>    /**
</span>     * Checks if the passed Date parameters will cause a javascript Date &quot;rollover&quot;.
     * @param {Number} year 4-digit year
     * @param {Number} month 1-based month-of-year
     * @param {Number} day Day of month
     * @param {Number} hour (optional) Hour
     * @param {Number} minute (optional) Minute
     * @param {Number} second (optional) Second
     * @param {Number} millisecond (optional) Millisecond
     * @return {Boolean} true if the passed parameters do not cause a Date &quot;rollover&quot;, false otherwise.
     * @static
     */
    isValid : function(y, m, d, h, i, s, ms) {
        // setup defaults
        h = h || 0;
        i = i || 0;
        s = s || 0;
        ms = ms || 0;

        // Special handling for year &lt; 100
        var dt = new Date(y &lt; 100 ? 100 : y, m - 1, d, h, i, s, ms).add(Date.YEAR, y &lt; 100 ? y - 100 : 0);

        return y == dt.getFullYear() &amp;&amp;
            m == dt.getMonth() + 1 &amp;&amp;
            d == dt.getDate() &amp;&amp;
            h == dt.getHours() &amp;&amp;
            i == dt.getMinutes() &amp;&amp;
            s == dt.getSeconds() &amp;&amp;
            ms == dt.getMilliseconds();
    },

<span id='Date-static-method-parseDate'>    /**
</span>     * Parses the passed string using the specified date format.
     * Note that this function expects normal calendar dates, meaning that months are 1-based (i.e. 1 = January).
     * The {@link #defaults} hash will be used for any date value (i.e. year, month, day, hour, minute, second or millisecond)
     * which cannot be found in the passed string. If a corresponding default date value has not been specified in the {@link #defaults} hash,
     * the current date's year, month, day or DST-adjusted zero-hour time value will be used instead.
     * Keep in mind that the input date string must precisely match the specified format string
     * in order for the parse operation to be successful (failed parse operations return a null value).
     * &lt;p&gt;Example:&lt;/p&gt;&lt;pre&gt;&lt;code&gt;
//dt = Fri May 25 2007 (current date)
var dt = new Date();

//dt = Thu May 25 2006 (today&amp;#39;s month/day in 2006)
dt = Date.parseDate(&quot;2006&quot;, &quot;Y&quot;);

//dt = Sun Jan 15 2006 (all date parts specified)
dt = Date.parseDate(&quot;2006-01-15&quot;, &quot;Y-m-d&quot;);

//dt = Sun Jan 15 2006 15:20:01
dt = Date.parseDate(&quot;2006-01-15 3:20:01 PM&quot;, &quot;Y-m-d g:i:s A&quot;);

// attempt to parse Sun Feb 29 2006 03:20:01 in strict mode
dt = Date.parseDate(&quot;2006-02-29 03:20:01&quot;, &quot;Y-m-d H:i:s&quot;, true); // returns null
&lt;/code&gt;&lt;/pre&gt;
     * @param {String} input The raw date string.
     * @param {String} format The expected date string format.
     * @param {Boolean} strict (optional) True to validate date strings while parsing (i.e. prevents javascript Date &quot;rollover&quot;)
                        (defaults to false). Invalid date strings will return null when parsed.
     * @return {Date} The parsed Date.
     * @static
     */
    parseDate : function(input, format, strict) {
        var p = Date.parseFunctions;
        if (p[format] == null) {
            Date.createParser(format);
        }
        return p[format](input, Ext.isDefined(strict) ? strict : Date.useStrict);
    },

    // private
    getFormatCode : function(character) {
        var f = Date.formatCodes[character];

        if (f) {
          f = typeof f == 'function'? f() : f;
          Date.formatCodes[character] = f; // reassign function result to prevent repeated execution
        }

        // note: unknown characters are treated as literals
        return f || (&quot;'&quot; + String.escape(character) + &quot;'&quot;);
    },

    // private
    createFormat : function(format) {
        var code = [],
            special = false,
            ch = '';

        for (var i = 0; i &lt; format.length; ++i) {
            ch = format.charAt(i);
            if (!special &amp;&amp; ch == &quot;\\&quot;) {
                special = true;
            } else if (special) {
                special = false;
                code.push(&quot;'&quot; + String.escape(ch) + &quot;'&quot;);
            } else {
                code.push(Date.getFormatCode(ch));
            }
        }
        Date.formatFunctions[format] = new Function(&quot;return &quot; + code.join('+'));
    },

    // private
    createParser : function() {
        var code = [
            &quot;var dt, y, m, d, h, i, s, ms, o, z, zz, u, v,&quot;,
                &quot;def = Date.defaults,&quot;,
                &quot;results = String(input).match(Date.parseRegexes[{0}]);&quot;, // either null, or an array of matched strings

            &quot;if(results){&quot;,
                &quot;{1}&quot;,

                &quot;if(u != null){&quot;, // i.e. unix time is defined
                    &quot;v = new Date(u * 1000);&quot;, // give top priority to UNIX time
                &quot;}else{&quot;,
                    // create Date object representing midnight of the current day;
                    // this will provide us with our date defaults
                    // (note: clearTime() handles Daylight Saving Time automatically)
                    &quot;dt = (new Date()).clearTime();&quot;,

                    // date calculations (note: these calculations create a dependency on Ext.num())
                    &quot;y = Ext.num(y, Ext.num(def.y, dt.getFullYear()));&quot;,
                    &quot;m = Ext.num(m, Ext.num(def.m - 1, dt.getMonth()));&quot;,
                    &quot;d = Ext.num(d, Ext.num(def.d, dt.getDate()));&quot;,

                    // time calculations (note: these calculations create a dependency on Ext.num())
                    &quot;h  = Ext.num(h, Ext.num(def.h, dt.getHours()));&quot;,
                    &quot;i  = Ext.num(i, Ext.num(def.i, dt.getMinutes()));&quot;,
                    &quot;s  = Ext.num(s, Ext.num(def.s, dt.getSeconds()));&quot;,
                    &quot;ms = Ext.num(ms, Ext.num(def.ms, dt.getMilliseconds()));&quot;,

                    &quot;if(z &gt;= 0 &amp;&amp; y &gt;= 0){&quot;,
                        // both the year and zero-based day of year are defined and &gt;= 0.
                        // these 2 values alone provide sufficient info to create a full date object

                        // create Date object representing January 1st for the given year
                        // handle years &lt; 100 appropriately
                        &quot;v = new Date(y &lt; 100 ? 100 : y, 0, 1, h, i, s, ms).add(Date.YEAR, y &lt; 100 ? y - 100 : 0);&quot;,

                        // then add day of year, checking for Date &quot;rollover&quot; if necessary
                        &quot;v = !strict? v : (strict === true &amp;&amp; (z &lt;= 364 || (v.isLeapYear() &amp;&amp; z &lt;= 365))? v.add(Date.DAY, z) : null);&quot;,
                    &quot;}else if(strict === true &amp;&amp; !Date.isValid(y, m + 1, d, h, i, s, ms)){&quot;, // check for Date &quot;rollover&quot;
                        &quot;v = null;&quot;, // invalid date, so return null
                    &quot;}else{&quot;,
                        // plain old Date object
                        // handle years &lt; 100 properly
                        &quot;v = new Date(y &lt; 100 ? 100 : y, m, d, h, i, s, ms).add(Date.YEAR, y &lt; 100 ? y - 100 : 0);&quot;,
                    &quot;}&quot;,
                &quot;}&quot;,
            &quot;}&quot;,

            &quot;if(v){&quot;,
                // favour UTC offset over GMT offset
                &quot;if(zz != null){&quot;,
                    // reset to UTC, then add offset
                    &quot;v = v.add(Date.SECOND, -v.getTimezoneOffset() * 60 - zz);&quot;,
                &quot;}else if(o){&quot;,
                    // reset to GMT, then add offset
                    &quot;v = v.add(Date.MINUTE, -v.getTimezoneOffset() + (sn == '+'? -1 : 1) * (hr * 60 + mn));&quot;,
                &quot;}&quot;,
            &quot;}&quot;,

            &quot;return v;&quot;
        ].join('\n');

        return function(format) {
            var regexNum = Date.parseRegexes.length,
                currentGroup = 1,
                calc = [],
                regex = [],
                special = false,
                ch = &quot;&quot;,
                i = 0,
                obj,
                last;

            for (; i &lt; format.length; ++i) {
                ch = format.charAt(i);
                if (!special &amp;&amp; ch == &quot;\\&quot;) {
                    special = true;
                } else if (special) {
                    special = false;
                    regex.push(String.escape(ch));
                } else {
                    obj = $f(ch, currentGroup);
                    currentGroup += obj.g;
                    regex.push(obj.s);
                    if (obj.g &amp;&amp; obj.c) {
                        if (obj.calcLast) {
                            last = obj.c;
                        } else {
                            calc.push(obj.c);
                        }
                    }
                }
            }
            
            if (last) {
                calc.push(last);
            }

            Date.parseRegexes[regexNum] = new RegExp(&quot;^&quot; + regex.join('') + &quot;$&quot;, 'i');
            Date.parseFunctions[format] = new Function(&quot;input&quot;, &quot;strict&quot;, xf(code, regexNum, calc.join('')));
        };
    }(),

    // private
    parseCodes : {
        /*
         * Notes:
         * g = {Number} calculation group (0 or 1. only group 1 contributes to date calculations.)
         * c = {String} calculation method (required for group 1. null for group 0. {0} = currentGroup - position in regex result array)
         * s = {String} regex pattern. all matches are stored in results[], and are accessible by the calculation mapped to 'c'
         */
        d: {
            g:1,
            c:&quot;d = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{2})&quot; // day of month with leading zeroes (01 - 31)
        },
        j: {
            g:1,
            c:&quot;d = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{1,2})&quot; // day of month without leading zeroes (1 - 31)
        },
        D: function() {
            for (var a = [], i = 0; i &lt; 7; a.push(Date.getShortDayName(i)), ++i); // get localised short day names
            return {
                g:0,
                c:null,
                s:&quot;(?:&quot; + a.join(&quot;|&quot;) +&quot;)&quot;
            };
        },
        l: function() {
            return {
                g:0,
                c:null,
                s:&quot;(?:&quot; + Date.dayNames.join(&quot;|&quot;) + &quot;)&quot;
            };
        },
        N: {
            g:0,
            c:null,
            s:&quot;[1-7]&quot; // ISO-8601 day number (1 (monday) - 7 (sunday))
        },
        S: {
            g:0,
            c:null,
            s:&quot;(?:st|nd|rd|th)&quot;
        },
        w: {
            g:0,
            c:null,
            s:&quot;[0-6]&quot; // javascript day number (0 (sunday) - 6 (saturday))
        },
        z: {
            g:1,
            c:&quot;z = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{1,3})&quot; // day of the year (0 - 364 (365 in leap years))
        },
        W: {
            g:0,
            c:null,
            s:&quot;(?:\\d{2})&quot; // ISO-8601 week number (with leading zero)
        },
        F: function() {
            return {
                g:1,
                c:&quot;m = parseInt(Date.getMonthNumber(results[{0}]), 10);\n&quot;, // get localised month number
                s:&quot;(&quot; + Date.monthNames.join(&quot;|&quot;) + &quot;)&quot;
            };
        },
        M: function() {
            for (var a = [], i = 0; i &lt; 12; a.push(Date.getShortMonthName(i)), ++i); // get localised short month names
            return Ext.applyIf({
                s:&quot;(&quot; + a.join(&quot;|&quot;) + &quot;)&quot;
            }, $f(&quot;F&quot;));
        },
        m: {
            g:1,
            c:&quot;m = parseInt(results[{0}], 10) - 1;\n&quot;,
            s:&quot;(\\d{2})&quot; // month number with leading zeros (01 - 12)
        },
        n: {
            g:1,
            c:&quot;m = parseInt(results[{0}], 10) - 1;\n&quot;,
            s:&quot;(\\d{1,2})&quot; // month number without leading zeros (1 - 12)
        },
        t: {
            g:0,
            c:null,
            s:&quot;(?:\\d{2})&quot; // no. of days in the month (28 - 31)
        },
        L: {
            g:0,
            c:null,
            s:&quot;(?:1|0)&quot;
        },
        o: function() {
            return $f(&quot;Y&quot;);
        },
        Y: {
            g:1,
            c:&quot;y = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{4})&quot; // 4-digit year
        },
        y: {
            g:1,
            c:&quot;var ty = parseInt(results[{0}], 10);\n&quot;
                + &quot;y = ty &gt; Date.y2kYear ? 1900 + ty : 2000 + ty;\n&quot;, // 2-digit year
            s:&quot;(\\d{1,2})&quot;
        },
<span id='Date-method-a'>        /**
</span>         * In the am/pm parsing routines, we allow both upper and lower case 
         * even though it doesn't exactly match the spec. It gives much more flexibility
         * in being able to specify case insensitive regexes.
         */
        a: function(){
            return $f(&quot;A&quot;);
        },
        A: {
            // We need to calculate the hour before we apply AM/PM when parsing
            calcLast: true,
            g:1,
            c:&quot;if (/(am)/i.test(results[{0}])) {\n&quot;
                + &quot;if (!h || h == 12) { h = 0; }\n&quot;
                + &quot;} else { if (!h || h &lt; 12) { h = (h || 0) + 12; }}&quot;,
            s:&quot;(AM|PM|am|pm)&quot;
        },
        g: function() {
            return $f(&quot;G&quot;);
        },
        G: {
            g:1,
            c:&quot;h = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{1,2})&quot; // 24-hr format of an hour without leading zeroes (0 - 23)
        },
        h: function() {
            return $f(&quot;H&quot;);
        },
        H: {
            g:1,
            c:&quot;h = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{2})&quot; //  24-hr format of an hour with leading zeroes (00 - 23)
        },
        i: {
            g:1,
            c:&quot;i = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{2})&quot; // minutes with leading zeros (00 - 59)
        },
        s: {
            g:1,
            c:&quot;s = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(\\d{2})&quot; // seconds with leading zeros (00 - 59)
        },
        u: {
            g:1,
            c:&quot;ms = results[{0}]; ms = parseInt(ms, 10)/Math.pow(10, ms.length - 3);\n&quot;,
            s:&quot;(\\d+)&quot; // decimal fraction of a second (minimum = 1 digit, maximum = unlimited)
        },
        O: {
            g:1,
            c:[
                &quot;o = results[{0}];&quot;,
                &quot;var sn = o.substring(0,1),&quot;, // get + / - sign
                    &quot;hr = o.substring(1,3)*1 + Math.floor(o.substring(3,5) / 60),&quot;, // get hours (performs minutes-to-hour conversion also, just in case)
                    &quot;mn = o.substring(3,5) % 60;&quot;, // get minutes
                &quot;o = ((-12 &lt;= (hr*60 + mn)/60) &amp;&amp; ((hr*60 + mn)/60 &lt;= 14))? (sn + String.leftPad(hr, 2, '0') + String.leftPad(mn, 2, '0')) : null;\n&quot; // -12hrs &lt;= GMT offset &lt;= 14hrs
            ].join(&quot;\n&quot;),
            s: &quot;([+\-]\\d{4})&quot; // GMT offset in hrs and mins
        },
        P: {
            g:1,
            c:[
                &quot;o = results[{0}];&quot;,
                &quot;var sn = o.substring(0,1),&quot;, // get + / - sign
                    &quot;hr = o.substring(1,3)*1 + Math.floor(o.substring(4,6) / 60),&quot;, // get hours (performs minutes-to-hour conversion also, just in case)
                    &quot;mn = o.substring(4,6) % 60;&quot;, // get minutes
                &quot;o = ((-12 &lt;= (hr*60 + mn)/60) &amp;&amp; ((hr*60 + mn)/60 &lt;= 14))? (sn + String.leftPad(hr, 2, '0') + String.leftPad(mn, 2, '0')) : null;\n&quot; // -12hrs &lt;= GMT offset &lt;= 14hrs
            ].join(&quot;\n&quot;),
            s: &quot;([+\-]\\d{2}:\\d{2})&quot; // GMT offset in hrs and mins (with colon separator)
        },
        T: {
            g:0,
            c:null,
            s:&quot;[A-Z]{1,4}&quot; // timezone abbrev. may be between 1 - 4 chars
        },
        Z: {
            g:1,
            c:&quot;zz = results[{0}] * 1;\n&quot; // -43200 &lt;= UTC offset &lt;= 50400
                  + &quot;zz = (-43200 &lt;= zz &amp;&amp; zz &lt;= 50400)? zz : null;\n&quot;,
            s:&quot;([+\-]?\\d{1,5})&quot; // leading '+' sign is optional for UTC offset
        },
        c: function() {
            var calc = [],
                arr = [
                    $f(&quot;Y&quot;, 1), // year
                    $f(&quot;m&quot;, 2), // month
                    $f(&quot;d&quot;, 3), // day
                    $f(&quot;h&quot;, 4), // hour
                    $f(&quot;i&quot;, 5), // minute
                    $f(&quot;s&quot;, 6), // second
                    {c:&quot;ms = results[7] || '0'; ms = parseInt(ms, 10)/Math.pow(10, ms.length - 3);\n&quot;}, // decimal fraction of a second (minimum = 1 digit, maximum = unlimited)
                    {c:[ // allow either &quot;Z&quot; (i.e. UTC) or &quot;-0530&quot; or &quot;+08:00&quot; (i.e. UTC offset) timezone delimiters. assumes local timezone if no timezone is specified
                        &quot;if(results[8]) {&quot;, // timezone specified
                            &quot;if(results[8] == 'Z'){&quot;,
                                &quot;zz = 0;&quot;, // UTC
                            &quot;}else if (results[8].indexOf(':') &gt; -1){&quot;,
                                $f(&quot;P&quot;, 8).c, // timezone offset with colon separator
                            &quot;}else{&quot;,
                                $f(&quot;O&quot;, 8).c, // timezone offset without colon separator
                            &quot;}&quot;,
                        &quot;}&quot;
                    ].join('\n')}
                ];

            for (var i = 0, l = arr.length; i &lt; l; ++i) {
                calc.push(arr[i].c);
            }

            return {
                g:1,
                c:calc.join(&quot;&quot;),
                s:[
                    arr[0].s, // year (required)
                    &quot;(?:&quot;, &quot;-&quot;, arr[1].s, // month (optional)
                        &quot;(?:&quot;, &quot;-&quot;, arr[2].s, // day (optional)
                            &quot;(?:&quot;,
                                &quot;(?:T| )?&quot;, // time delimiter -- either a &quot;T&quot; or a single blank space
                                arr[3].s, &quot;:&quot;, arr[4].s,  // hour AND minute, delimited by a single colon (optional). MUST be preceded by either a &quot;T&quot; or a single blank space
                                &quot;(?::&quot;, arr[5].s, &quot;)?&quot;, // seconds (optional)
                                &quot;(?:(?:\\.|,)(\\d+))?&quot;, // decimal fraction of a second (e.g. &quot;,12345&quot; or &quot;.98765&quot;) (optional)
                                &quot;(Z|(?:[-+]\\d{2}(?::)?\\d{2}))?&quot;, // &quot;Z&quot; (UTC) or &quot;-0530&quot; (UTC offset without colon delimiter) or &quot;+08:00&quot; (UTC offset with colon delimiter) (optional)
                            &quot;)?&quot;,
                        &quot;)?&quot;,
                    &quot;)?&quot;
                ].join(&quot;&quot;)
            };
        },
        U: {
            g:1,
            c:&quot;u = parseInt(results[{0}], 10);\n&quot;,
            s:&quot;(-?\\d+)&quot; // leading minus sign indicates seconds before UNIX epoch
        }
    }
});

}());

Ext.apply(Date.prototype, {
    // private
    dateFormat : function(format) {
        if (Date.formatFunctions[format] == null) {
            Date.createFormat(format);
        }
        return Date.formatFunctions[format].call(this);
    },

<span id='Date-method-getTimezone'>    /**
</span>     * Get the timezone abbreviation of the current date (equivalent to the format specifier 'T').
     *
     * Note: The date string returned by the javascript Date object's toString() method varies
     * between browsers (e.g. FF vs IE) and system region settings (e.g. IE in Asia vs IE in America).
     * For a given date string e.g. &quot;Thu Oct 25 2007 22:55:35 GMT+0800 (Malay Peninsula Standard Time)&quot;,
     * getTimezone() first tries to get the timezone abbreviation from between a pair of parentheses
     * (which may or may not be present), failing which it proceeds to get the timezone abbreviation
     * from the GMT offset portion of the date string.
     * @return {String} The abbreviated timezone name (e.g. 'CST', 'PDT', 'EDT', 'MPST' ...).
     */
    getTimezone : function() {
        // the following list shows the differences between date strings from different browsers on a WinXP SP2 machine from an Asian locale:
        //
        // Opera  : &quot;Thu, 25 Oct 2007 22:53:45 GMT+0800&quot; -- shortest (weirdest) date string of the lot
        // Safari : &quot;Thu Oct 25 2007 22:55:35 GMT+0800 (Malay Peninsula Standard Time)&quot; -- value in parentheses always gives the correct timezone (same as FF)
        // FF     : &quot;Thu Oct 25 2007 22:55:35 GMT+0800 (Malay Peninsula Standard Time)&quot; -- value in parentheses always gives the correct timezone
        // IE     : &quot;Thu Oct 25 22:54:35 UTC+0800 2007&quot; -- (Asian system setting) look for 3-4 letter timezone abbrev
        // IE     : &quot;Thu Oct 25 17:06:37 PDT 2007&quot; -- (American system setting) look for 3-4 letter timezone abbrev
        //
        // this crazy regex attempts to guess the correct timezone abbreviation despite these differences.
        // step 1: (?:\((.*)\) -- find timezone in parentheses
        // step 2: ([A-Z]{1,4})(?:[\-+][0-9]{4})?(?: -?\d+)?) -- if nothing was found in step 1, find timezone from timezone offset portion of date string
        // step 3: remove all non uppercase characters found in step 1 and 2
        return this.toString().replace(/^.* (?:\((.*)\)|([A-Z]{1,4})(?:[\-+][0-9]{4})?(?: -?\d+)?)$/, &quot;$1$2&quot;).replace(/[^A-Z]/g, &quot;&quot;);
    },

<span id='Date-method-getGMTOffset'>    /**
</span>     * Get the offset from GMT of the current date (equivalent to the format specifier 'O').
     * @param {Boolean} colon (optional) true to separate the hours and minutes with a colon (defaults to false).
     * @return {String} The 4-character offset string prefixed with + or - (e.g. '-0600').
     */
    getGMTOffset : function(colon) {
        return (this.getTimezoneOffset() &gt; 0 ? &quot;-&quot; : &quot;+&quot;)
            + String.leftPad(Math.floor(Math.abs(this.getTimezoneOffset()) / 60), 2, &quot;0&quot;)
            + (colon ? &quot;:&quot; : &quot;&quot;)
            + String.leftPad(Math.abs(this.getTimezoneOffset() % 60), 2, &quot;0&quot;);
    },

<span id='Date-method-getDayOfYear'>    /**
</span>     * Get the numeric day number of the year, adjusted for leap year.
     * @return {Number} 0 to 364 (365 in leap years).
     */
    getDayOfYear: function() {
        var num = 0,
            d = this.clone(),
            m = this.getMonth(),
            i;

        for (i = 0, d.setDate(1), d.setMonth(0); i &lt; m; d.setMonth(++i)) {
            num += d.getDaysInMonth();
        }
        return num + this.getDate() - 1;
    },

<span id='Date-method-getWeekOfYear'>    /**
</span>     * Get the numeric ISO-8601 week number of the year.
     * (equivalent to the format specifier 'W', but without a leading zero).
     * @return {Number} 1 to 53
     */
    getWeekOfYear : function() {
        // adapted from http://www.merlyn.demon.co.uk/weekcalc.htm
        var ms1d = 864e5, // milliseconds in a day
            ms7d = 7 * ms1d; // milliseconds in a week

        return function() { // return a closure so constants get calculated only once
            var DC3 = Date.UTC(this.getFullYear(), this.getMonth(), this.getDate() + 3) / ms1d, // an Absolute Day Number
                AWN = Math.floor(DC3 / 7), // an Absolute Week Number
                Wyr = new Date(AWN * ms7d).getUTCFullYear();

            return AWN - Math.floor(Date.UTC(Wyr, 0, 7) / ms7d) + 1;
        };
    }(),

<span id='Date-method-isLeapYear'>    /**
</span>     * Checks if the current date falls within a leap year.
     * @return {Boolean} True if the current date falls within a leap year, false otherwise.
     */
    isLeapYear : function() {
        var year = this.getFullYear();
        return !!((year &amp; 3) == 0 &amp;&amp; (year % 100 || (year % 400 == 0 &amp;&amp; year)));
    },

<span id='Date-method-getFirstDayOfMonth'>    /**
</span>     * Get the first day of the current month, adjusted for leap year.  The returned value
     * is the numeric day index within the week (0-6) which can be used in conjunction with
     * the {@link #monthNames} array to retrieve the textual day name.
     * Example:
     * &lt;pre&gt;&lt;code&gt;
var dt = new Date('1/10/2007');
document.write(Date.dayNames[dt.getFirstDayOfMonth()]); //output: 'Monday'
&lt;/code&gt;&lt;/pre&gt;
     * @return {Number} The day number (0-6).
     */
    getFirstDayOfMonth : function() {
        var day = (this.getDay() - (this.getDate() - 1)) % 7;
        return (day &lt; 0) ? (day + 7) : day;
    },

<span id='Date-method-getLastDayOfMonth'>    /**
</span>     * Get the last day of the current month, adjusted for leap year.  The returned value
     * is the numeric day index within the week (0-6) which can be used in conjunction with
     * the {@link #monthNames} array to retrieve the textual day name.
     * Example:
     * &lt;pre&gt;&lt;code&gt;
var dt = new Date('1/10/2007');
document.write(Date.dayNames[dt.getLastDayOfMonth()]); //output: 'Wednesday'
&lt;/code&gt;&lt;/pre&gt;
     * @return {Number} The day number (0-6).
     */
    getLastDayOfMonth : function() {
        return this.getLastDateOfMonth().getDay();
    },


<span id='Date-method-getFirstDateOfMonth'>    /**
</span>     * Get the date of the first day of the month in which this date resides.
     * @return {Date}
     */
    getFirstDateOfMonth : function() {
        return new Date(this.getFullYear(), this.getMonth(), 1);
    },

<span id='Date-method-getLastDateOfMonth'>    /**
</span>     * Get the date of the last day of the month in which this date resides.
     * @return {Date}
     */
    getLastDateOfMonth : function() {
        return new Date(this.getFullYear(), this.getMonth(), this.getDaysInMonth());
    },

<span id='Date-method-getDaysInMonth'>    /**
</span>     * Get the number of days in the current month, adjusted for leap year.
     * @return {Number} The number of days in the month.
     */
    getDaysInMonth: function() {
        var daysInMonth = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];

        return function() { // return a closure for efficiency
            var m = this.getMonth();

            return m == 1 &amp;&amp; this.isLeapYear() ? 29 : daysInMonth[m];
        };
    }(),

<span id='Date-method-getSuffix'>    /**
</span>     * Get the English ordinal suffix of the current day (equivalent to the format specifier 'S').
     * @return {String} 'st, 'nd', 'rd' or 'th'.
     */
    getSuffix : function() {
        switch (this.getDate()) {
            case 1:
            case 21:
            case 31:
                return &quot;st&quot;;
            case 2:
            case 22:
                return &quot;nd&quot;;
            case 3:
            case 23:
                return &quot;rd&quot;;
            default:
                return &quot;th&quot;;
        }
    },

<span id='Date-method-clone'>    /**
</span>     * Creates and returns a new Date instance with the exact same date value as the called instance.
     * Dates are copied and passed by reference, so if a copied date variable is modified later, the original
     * variable will also be changed.  When the intention is to create a new variable that will not
     * modify the original instance, you should create a clone.
     *
     * Example of correctly cloning a date:
     * &lt;pre&gt;&lt;code&gt;
//wrong way:
var orig = new Date('10/1/2006');
var copy = orig;
copy.setDate(5);
document.write(orig);  //returns 'Thu Oct 05 2006'!

//correct way:
var orig = new Date('10/1/2006');
var copy = orig.clone();
copy.setDate(5);
document.write(orig);  //returns 'Thu Oct 01 2006'
&lt;/code&gt;&lt;/pre&gt;
     * @return {Date} The new Date instance.
     */
    clone : function() {
        return new Date(this.getTime());
    },

<span id='Date-method-isDST'>    /**
</span>     * Checks if the current date is affected by Daylight Saving Time (DST).
     * @return {Boolean} True if the current date is affected by DST.
     */
    isDST : function() {
        // adapted from http://extjs.com/forum/showthread.php?p=247172#post247172
        // courtesy of @geoffrey.mcgill
        return new Date(this.getFullYear(), 0, 1).getTimezoneOffset() != this.getTimezoneOffset();
    },

<span id='Date-method-clearTime'>    /**
</span>     * Attempts to clear all time information from this Date by setting the time to midnight of the same day,
     * automatically adjusting for Daylight Saving Time (DST) where applicable.
     * (note: DST timezone information for the browser's host operating system is assumed to be up-to-date)
     * @param {Boolean} clone true to create a clone of this date, clear the time and return it (defaults to false).
     * @return {Date} this or the clone.
     */
    clearTime : function(clone) {
        if (clone) {
            return this.clone().clearTime();
        }

        // get current date before clearing time
        var d = this.getDate();

        // clear time
        this.setHours(0);
        this.setMinutes(0);
        this.setSeconds(0);
        this.setMilliseconds(0);

        if (this.getDate() != d) { // account for DST (i.e. day of month changed when setting hour = 0)
            // note: DST adjustments are assumed to occur in multiples of 1 hour (this is almost always the case)
            // refer to http://www.timeanddate.com/time/aboutdst.html for the (rare) exceptions to this rule

            // increment hour until cloned date == current date
            for (var hr = 1, c = this.add(Date.HOUR, hr); c.getDate() != d; hr++, c = this.add(Date.HOUR, hr));

            this.setDate(d);
            this.setHours(c.getHours());
        }

        return this;
    },

<span id='Date-method-add'>    /**
</span>     * Provides a convenient method for performing basic date arithmetic. This method
     * does not modify the Date instance being called - it creates and returns
     * a new Date instance containing the resulting date value.
     *
     * Examples:
     * &lt;pre&gt;&lt;code&gt;
// Basic usage:
var dt = new Date('10/29/2006').add(Date.DAY, 5);
document.write(dt); //returns 'Fri Nov 03 2006 00:00:00'

// Negative values will be subtracted:
var dt2 = new Date('10/1/2006').add(Date.DAY, -5);
document.write(dt2); //returns 'Tue Sep 26 2006 00:00:00'

// You can even chain several calls together in one line:
var dt3 = new Date('10/1/2006').add(Date.DAY, 5).add(Date.HOUR, 8).add(Date.MINUTE, -30);
document.write(dt3); //returns 'Fri Oct 06 2006 07:30:00'
&lt;/code&gt;&lt;/pre&gt;
     *
     * @param {String} interval A valid date interval enum value.
     * @param {Number} value The amount to add to the current date.
     * @return {Date} The new Date instance.
     */
    add : function(interval, value) {
        var d = this.clone();
        if (!interval || value === 0) return d;

        switch(interval.toLowerCase()) {
            case Date.MILLI:
                d.setMilliseconds(this.getMilliseconds() + value);
                break;
            case Date.SECOND:
                d.setSeconds(this.getSeconds() + value);
                break;
            case Date.MINUTE:
                d.setMinutes(this.getMinutes() + value);
                break;
            case Date.HOUR:
                d.setHours(this.getHours() + value);
                break;
            case Date.DAY:
                d.setDate(this.getDate() + value);
                break;
            case Date.MONTH:
                var day = this.getDate();
                if (day &gt; 28) {
                    day = Math.min(day, this.getFirstDateOfMonth().add('mo', value).getLastDateOfMonth().getDate());
                }
                d.setDate(day);
                d.setMonth(this.getMonth() + value);
                break;
            case Date.YEAR:
                d.setFullYear(this.getFullYear() + value);
                break;
        }
        return d;
    },

<span id='Date-method-between'>    /**
</span>     * Checks if this date falls on or between the given start and end dates.
     * @param {Date} start Start date
     * @param {Date} end End date
     * @return {Boolean} true if this date falls on or between the given start and end dates.
     */
    between : function(start, end) {
        var t = this.getTime();
        return start.getTime() &lt;= t &amp;&amp; t &lt;= end.getTime();
    }
});


<span id='Date-method-format'>/**
</span> * Formats a date given the supplied format string.
 * @param {String} format The format string.
 * @return {String} The formatted date.
 * @method format
 */
Date.prototype.format = Date.prototype.dateFormat;


// private
if (Ext.isSafari &amp;&amp; (navigator.userAgent.match(/WebKit\/(\d+)/)[1] || NaN) &lt; 420) {
    Ext.apply(Date.prototype, {
        _xMonth : Date.prototype.setMonth,
        _xDate  : Date.prototype.setDate,

        // Bug in Safari 1.3, 2.0 (WebKit build &lt; 420)
        // Date.setMonth does not work consistently if iMonth is not 0-11
        setMonth : function(num) {
            if (num &lt;= -1) {
                var n = Math.ceil(-num),
                    back_year = Math.ceil(n / 12),
                    month = (n % 12) ? 12 - n % 12 : 0;

                this.setFullYear(this.getFullYear() - back_year);

                return this._xMonth(month);
            } else {
                return this._xMonth(num);
            }
        },

        // Bug in setDate() method (resolved in WebKit build 419.3, so to be safe we target Webkit builds &lt; 420)
        // The parameter for Date.setDate() is converted to a signed byte integer in Safari
        // http://brianary.blogspot.com/2006/03/safari-date-bug.html
        setDate : function(d) {
            // use setTime() to workaround setDate() bug
            // subtract current day of month in milliseconds, then add desired day of month in milliseconds
            return this.setTime(this.getTime() - (this.getDate() - d) * 864e5);
        }
    });
}



/* Some basic Date tests... (requires Firebug)

Date.parseDate('', 'c'); // call Date.parseDate() once to force computation of regex string so we can console.log() it
console.log('Insane Regex for &quot;c&quot; format: %o', Date.parseCodes.c.s); // view the insane regex for the &quot;c&quot; format specifier

// standard tests
console.group('Standard Date.parseDate() Tests');
    console.log('Date.parseDate(&quot;2009-01-05T11:38:56&quot;, &quot;c&quot;)               = %o', Date.parseDate(&quot;2009-01-05T11:38:56&quot;, &quot;c&quot;)); // assumes browser's timezone setting
    console.log('Date.parseDate(&quot;2009-02-04T12:37:55.001000&quot;, &quot;c&quot;)        = %o', Date.parseDate(&quot;2009-02-04T12:37:55.001000&quot;, &quot;c&quot;)); // assumes browser's timezone setting
    console.log('Date.parseDate(&quot;2009-03-03T13:36:54,101000Z&quot;, &quot;c&quot;)       = %o', Date.parseDate(&quot;2009-03-03T13:36:54,101000Z&quot;, &quot;c&quot;)); // UTC
    console.log('Date.parseDate(&quot;2009-04-02T14:35:53.901000-0530&quot;, &quot;c&quot;)   = %o', Date.parseDate(&quot;2009-04-02T14:35:53.901000-0530&quot;, &quot;c&quot;)); // GMT-0530
    console.log('Date.parseDate(&quot;2009-05-01T15:34:52,9876000+08:00&quot;, &quot;c&quot;) = %o', Date.parseDate(&quot;2009-05-01T15:34:52,987600+08:00&quot;, &quot;c&quot;)); // GMT+08:00
console.groupEnd();

// ISO-8601 format as specified in http://www.w3.org/TR/NOTE-datetime
// -- accepts ALL 6 levels of date-time granularity
console.group('ISO-8601 Granularity Test (see http://www.w3.org/TR/NOTE-datetime)');
    console.log('Date.parseDate(&quot;1997&quot;, &quot;c&quot;)                              = %o', Date.parseDate(&quot;1997&quot;, &quot;c&quot;)); // YYYY (e.g. 1997)
    console.log('Date.parseDate(&quot;1997-07&quot;, &quot;c&quot;)                           = %o', Date.parseDate(&quot;1997-07&quot;, &quot;c&quot;)); // YYYY-MM (e.g. 1997-07)
    console.log('Date.parseDate(&quot;1997-07-16&quot;, &quot;c&quot;)                        = %o', Date.parseDate(&quot;1997-07-16&quot;, &quot;c&quot;)); // YYYY-MM-DD (e.g. 1997-07-16)
    console.log('Date.parseDate(&quot;1997-07-16T19:20+01:00&quot;, &quot;c&quot;)            = %o', Date.parseDate(&quot;1997-07-16T19:20+01:00&quot;, &quot;c&quot;)); // YYYY-MM-DDThh:mmTZD (e.g. 1997-07-16T19:20+01:00)
    console.log('Date.parseDate(&quot;1997-07-16T19:20:30+01:00&quot;, &quot;c&quot;)         = %o', Date.parseDate(&quot;1997-07-16T19:20:30+01:00&quot;, &quot;c&quot;)); // YYYY-MM-DDThh:mm:ssTZD (e.g. 1997-07-16T19:20:30+01:00)
    console.log('Date.parseDate(&quot;1997-07-16T19:20:30.45+01:00&quot;, &quot;c&quot;)      = %o', Date.parseDate(&quot;1997-07-16T19:20:30.45+01:00&quot;, &quot;c&quot;)); // YYYY-MM-DDThh:mm:ss.sTZD (e.g. 1997-07-16T19:20:30.45+01:00)
    console.log('Date.parseDate(&quot;1997-07-16 19:20:30.45+01:00&quot;, &quot;c&quot;)      = %o', Date.parseDate(&quot;1997-07-16 19:20:30.45+01:00&quot;, &quot;c&quot;)); // YYYY-MM-DD hh:mm:ss.sTZD (e.g. 1997-07-16T19:20:30.45+01:00)
    console.log('Date.parseDate(&quot;1997-13-16T19:20:30.45+01:00&quot;, &quot;c&quot;, true)= %o', Date.parseDate(&quot;1997-13-16T19:20:30.45+01:00&quot;, &quot;c&quot;, true)); // strict date parsing with invalid month value
console.groupEnd();

*/
</pre>
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